The words Dog Breed Info with the letter D inside of a black paw print

American Bull Molosser

Information and Pictures

The front left side of a brown with white American Bull Molosser that is standing across a lawn with its mouth open and its tongue is out.

TNU's Al's Capone American Bull Molosser (ABM) at 2 years old, 100 pounds (45 kg) and 23 inches (58 cm); photo courtesy of Tuff-N-Uff Kennels


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Other Names
  • American Molosser
  • American Brabanter
  • American Bullenbeisser



The American Bull Molosser is a family pet protector. It is a loyal, courageous medium to large sized dog possessing brains, natural ability, good looks, a stable working temperament and the desire to please its handler. The ABM is easily trained and fits well in a stable family environment, provided the pup has been raised properly and has been given a proper foundation. Professional training is suggested for first-time ABM owners. The breed doesn't deserve any undo caution, but does require their owners to demonstrate common sense and responsible ownership, as does any breed. The ABM, when mature, will provide companionship and security for the family or person that has taken the time to educate themselves and has applied that education, appropriately ensuring responsible ownership of one of the most loyal and capable family pet protectors of our time. The American Bull Molosser needs an owner who is firm, but calm, confident and consistent. They need to know what is expected of them; rules to follow and limits as to what they are and are not allowed to do. The objective in training and successfully keeping this dog is to achieve a pack leader status. It is a natural instinct for a dog to have an order in their pack. When we humans live with dogs, we become their pack. The entire pack cooperates under a single leader; lines are clearly defined. You and all other humans MUST be higher up in the order than the dog. That is the only way your relationship can be a success.

Height, Weight

Height: Males 22 - 26 inches (56 - 66 cm)

Weight: Males 85 - 115 pounds (38 - 48 kg)

Height: Females 20 - 24 inches (51 - 60 cm)

Weight: Females 70 - 95 pounds (32 - 43 kg)

Health Problems

No known or reported health problems to date.

Living Conditions

A clean, stable, healthy environment is required, be it in an apartment in the city or an estate in the Hamptons. A fenced backyard is suggested but not required, although it may be required in many communities. Proper nutrition from a quality diet, regular veterinary visits and care and exercise is essential for promoting health in all breeds of dogs. Crate training is also suggested for pups and young dogs.


A brisk walk twice a day combined with a bit of fetch and obedience training will suffice to keep your ABM in good physical and mental condition.

Life Expectancy

You can expect to share 10 - 14 years of quality time with your ABM provided you have followed the advice of your breeder and your veterinarian.

Litter Size

About 6 to 8 puppies


The ABM will enjoy a brushing daily, but it's not required. Nails will need trimming once a month. Teeth may require a cleaning periodically and should be done by the veterinarian. Bathing your indoor ABM with a mild shampoo once a month will suffice. Flea and tick preventative are recommended as well as heartworm preventative. We recommend that you consult with a qualified veterinarian before cleaning or treating your dog with any products.


The American Bull Molosser was developed primarily using quality core / foundation dogs acquired from the Hines Bulldog, American Bandogge, German Rottweiler, Neapolitan Mastiff, South African Boerboel, Hermes Olde Bulldog, Cane Corso and the Dogue De Bordeaux. Although the ABM is capable of multitasking and would fare well as a service dog in a number of fields its founder believes that the breed is most valuable as a family pet protector and breeds specifically for the traits most desired for this application.



  • BBC = Backwoods Bulldog Club
  • DRA = Dog Registry of America, Inc.